(Upload on May 7 2015) [ 日本語 | English ]

Viola diffusa Ging.

Mount Usu / Sarobetsu post-mined peatland
From left: Crater basin in 1986 and 2006. Cottongrass / Daylily

Viola L. (スミレ)
Viola diffusa Ging.

ssp. tenuis (Benth.) W. Becker (Viola tenuis Benth.)
Yamatsukushisumire (ヤマツクシスミレ, 山筑紫菫)
var. glabella H. Boissieu
Tsukushisumire (ツクシスミレ, 筑紫菫, s.s.), Tsukushi violet
Lifeform: evergreen perennial forb

Distribution: east Asia, including southern Kyushu and Ryukyu in Japan
Habitat: roadsides, grasslands and cropfields
Flower: pale-yellow center, small lower petal
Spur: short
Leaf: hairy, serrate (spoon-like) → identification key from the other species
Chromosome number: 2n = 26
ssp. tenuis (ナンバンスミレ): hairiness and obcordate leaf base

Viola diffusa in Japan


Viola1 Viola2
Viola3 Viola4
[1-4] on a rocky slope near Terukuni Shrine at the foot of Shiroyama nature road in Kagoshima City, southern Kyushu, on March 20 2015.